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High-Altitude Pseudo-Satellites (HAPS) are airships “quasi-”stationed at a height of 20-30 km, in an altitude range where atmospheric winds are milder. HAPS are normally solar powered, unmanned, large, helium filled and semi-rigid; they can be operational for several years. HAPS have been studied in the telecom domain (ESA GSP HAPPIEST study), where they were briefly considered as: An…Subcontractors
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